Combining aluminium with copper, magnesium, and other metals yields an alloy that is light, yet strong enough to stand up to the stresses of flight.

 
  • 铝与铜、镁及其他一些金属化合生成一种合金,这种合金轻,而且结实,足以又红又专得起飞行的压力。
今日热词
目录 附录 查词历史